baber/WOPTO huggingface dataset:
Patent GB-1076061-A (GB)
Title: Improvements in and relating to projection lamps
Inventor: MCLINTIC WILLIAM JAMES
IPC: H01K1/62
Filed: 1965-05-28
Abstract: 1,076,061. Electric lamps with cut-outs. BRITISH LIGHTING INDUSTRIES Ltd. May 25, 1966 [May 28, 1965], No. 22837/65. Heading H1F. [Also in Division H2] A projection lamp is provided with a surgelimiting resistance in series with the filament and a thermally operated switch which short-circuits the resistance when the temperature of the main filament reaches a certain value. The lamp comprises an envelope 10 with a base cap in which are contact pins 12 ..  15, the pins 12, 14 carrying supports 16, 17 for the filament. An auxiliary filament 21 forming the surge limiting resistance is connected between pins 14 and 15 and a fuse 23 between pins 15 and 13. The support 17 carries a bimetallic strip 24 which bends under the heat of the lamp to engage the pin 15 and shortcircuit the filament 21. In a modification, the surge limiting resistance is external to the lamp, being connected to the pin 14. The main filament is connected between the pins 12 and 14 and the fuse between the pins 12 and 13. One side of the supply is connected to the pin 15 and also to the pin 14 via the surge limiting resistance 26. A reflector may be mounted inside the lamp envelope on a glass bar supported between the filament supports 16, 17.
Patent GB-1486267-A (GB)
Title: Rotary paper cutter
IPC: B26D7/26
Filed: 1974-11-07
Abstract: 1486267 Paper cutter BELL & HOWELL CO 7 Nov 1974 [8 Nov 1973] 22850/75 Divided out of 1486266 Heading B4B A rotary paper cutter comprises a bar 134, with a cutting edge 134a, mounted so that it can move arcuately about a pivot at one end and bodily parallel to the plane of paper movement at the other end. The bar is located below the paper to be cut, and co-operates with a rotary cutting blade above the paper. Bearing surfaces of uneven size at the blade ends cooperate with the bar when it is urged against them, and impose a shearing action on the blade and bar.
Patent GB-277497-A (GB)
Title: Improvements relating to lifting and lowering apparatus
IPC: B66D3/10
Filed: 1926-09-20
Abstract: 277,497. Stroms, M. Sept. 20, 1926. Brakes and retarding - apparatus for paying-out apparatus. -In a fire escape the lowering chain 11 passes over a chain wheel 8 mounted on a threaded part 9<1> of a shaft 9 between escapement wheels 2 which are free on the shaft and disposed adjacent to friction discs 12 fast on the shaft. When the chain is pulled, the wheel 8 moves along the shaft and clamps one of the escapement wheels between it and a disc 12, thereby putting the escapement mechanism into operation.
Patent GB-1273477-A (GB)
Title: An improved apparatus for measuring flow in an intravenous flow control system
Inventor: SPENCER JORDAN LOUIS
IPC: G01F1/00
Filed: 1970-05-13
Abstract: 1,273,477. Intravenous feeding. J. L. SPENCER. 13 May, 1970 [9 June, 1969], No. 23178/70. Heading A5R. [Also in Division G1] In an intravenous feed apparatus, such as for food, blood or drugs in medical applications, a solution is fed to a patient from a reservoir 10 via a valve 13 and tubes 12 and 14, and the tube 14 contains a magnetically attractive float 15 either of a metal, plastics with iron filings disposed therein, or of an iron core with a plastics or glass covering, the arrangement being such that the float 15 moves with the solution flow through the tube 14 from an initial position X to a position Y to interrupt a light beam between a source 18 and a detector 19 to actuate a pulse generator 20 which energises magnets 16, 17 to return the float 15 to the initial position X and at the same time feed a counter 22 which records the oscillation frequency and transfers this information to a frequency or flowmeter 23 which directly indicates the flow rate.
Patent GB-1347406-A (GB)
Title: Road traffic signalling system
IPC: G08G1/081
Filed: 1971-04-19
Abstract: 1347406 Controlling traffic signals HASLER AG 19 April 1971 [5 March 1970] 23258/71 Heading G4Q In a road traffic signalling system, traffic measuring and sensing circuits are controlled from a computer containing stored programmes. Signal plans relevant to specific traffic conditi ons are contained in the store and are switched into operation when the traffic conditions occur. The data processing plant, 1, is controlled by the clock, 21. Data is transmitted from the output store, 5, through the output register 8 to the control points, i.e. traffic lights, 15. The traffic measuring circuits, 16, and traffic sensing elements, 17, supply signals to the input register, 10, and input store, 6.
Patent GB-741903-A (GB)
Title: An improved cutter head for a mineral-mining or earth-boring machine
IPC: E21C25/58
Filed: 1953-08-24
Abstract: 741,903. Mineral-mining. apparatus. JOYSULLIVAN, Ltd., and SMITH, W. M. July 12, 1954 [Aug. 24, 1953], No. 23262/53. Class 68(1) A centrally disposed, conical breaker i of a mineral-boring cutter head, formed by a cutter-armed, open ended cylinder a and a scroll conveyer h secured to a rotatable and advanceable shaft g in which the breaker i is mounted, is capable of intermittent radial expansion. As the shaft g rotates, one end of a plunger p, radially disposed therein, passes over a series of cam surfaces in a ring structure r secured against rotational movement, and the plunger moves radially of the shaft to impart an intermittent axial movement to rod u. l. The rod u, l moves a spring-biased wedge member k to move radially of the body of the breaker segments j circumferently disposed therein.
Patent GB-301558-A (GB)
Title: Improvements in and relating to electric transformers
IPC: H01F38/28
Filed: 1927-09-06
Abstract: 301,558. British Thomson-Houston Co., Ltd., Wellings, J. G., and Mayo, C. G. Sept. 6, 1927. Transformers, par. ticularly current transformers f o r supplying a thermal or overload relay are arranged so that the ratic diminishes with increasing primary current, an auxiliary primary winding being provided to oppose the excitation of the main primary and being arranged so that its excitation increases only slightly as the excitation of the main primary increases, so that the transformer output increases at a greater rate than that at which the main primary current increases. The main core 23 has the same radial dimensions as, but several times the axial length of, the auxiliary core 24, which is arranged to be saturated so that the current in its secondary 25 (and therefore in the auxiliary primary 26 of the main core) does not increase in proportion to the current in the main primary 15. The main secondary 27 is wound over the core 23, the cores are then brought together, and the windings 25, 26 are wound over both cores, a preferably inductive impedance Z being arranged in the circuit and being obtained by winding an extension of this winding circumferentially round the main core, which thus serves as the core of an open-cored reactor. Examples of ratios and turns for the windings are given in the Specification.
Patent GB-1174198-A (GB)
Title: A method of producing electric contact.
Inventor: SHENFIL LEONID ZALMANOVICH
IPC: H01F1/26
Filed: 1967-05-19
Abstract: 1,174,198. Direct connections. NAUCHNO ISSLEDOVATELSKY INSTITUT REZINOVYKH I IATEKSNYKH IZDELY. 19 May. 1967, No. 23413/67. Heading H2E. In a method of making electrical contacts. e.g. as shown between a semi-conductor plate 3 and ferromagnetic conductors 5 in armoured glass disc 4 using conductive polymer cement 1, the conductive filler for the cement is ferromagnetic, and the cement is exposed during hardening to a non-uniform magnetic field of varying intensity. This concentrates the filler particles into beams 2 forming low-resistance contacts and the method is stated to allow simultaneous production of up to 10,000 contacts per sq. cm. Contacts may also be formed between two sets of conductors (Fig. 2, not shown) or between a set of conductors and a photosensitive layer (Fig. 3, not shown). The cement may be an epoxy resin or fluoropolymer composition containing nickel powder. As shown, disc 4 is coated with platinum balancing grid 6 insulated from conductors 5.
Patent GB-949802-A (GB)
Title: Fuel cells
IPC: H01M8/04223
Filed: 1961-06-28
Abstract: 949,802. Fuel cells. SIEMENS-SCHUCKERTWERKE A.G., and VARTA A.G. June 28, 1961 [July 21, 1960], No. 23445/61. Heading H1B. Fuel cells are supplied with gaseous fuel and/ or oxygen by connecting the electrodes in series as respects the gas flow and purging the last electrode in accordance with the polarisation of the last said electrode. The potentials of the first and last cells in the gas series may be compared in order to determine the polarisation due to the gaseous impurities. As shown, relays R 1 , R 2  respond respectively to the presence of impurities in the fuel and the oxygen and operate purge valves V 1 , V 2  via magnets M 1 , M 2 .
Patent GB-182719-A (GB)
Title: Improvements in change-speed gear-boxes for use in connection with motor-cycles and other motor-driven vehicles
IPC: B62M25/00
Filed: 1921-09-03
Abstract: 182,719. Downs, N. T., and Dyke, C. H. Sept. 3, 1921. Variable-speed gearing comprises six gears arranged as shown in Fig. 1, the middle pair 4, 9 being always in mesh and being movable independently, the gear 4 to produce the highest and lowest speeds, and the countershaft gear 9 to produce the middle of the three speeds. The gea.r 4, which has clutch ends 22, 23 is splined on a driving-shaft 2 and carries loose upon it a driven sleeve 28 with gear 6 and a pinion 5 meshing with a large wheel 8 fast upon the countershaft 3. Another gear 7 fast upon the shaft 3 meshes with the gear 6. The highest speed is a direct drive obtained by sliding the gear 4 to the right into clutch engagement with the sleeve 28. The lowest speed is obtained by sliding the gear 4 to the left into clutch engagement with the pinion 5 when the drive passes through the train 4, 5, 8, 7, 6. For the middle speed, the gear 4 is brought to neutral, and the gear 9, which is loose on the shaft 3, is brought into clutch engagement with the wheel 8. The drive then passes through the train 4, 9, 8, 7, 6. Operation is effected by forks 10, 11, Fig. 4, having bearing sleeves 10<a>, 11<a> surrounding an operating cam shaft 12. Studs 10<c>, 11<c> engage grooves 10<b>, 11<b> in the shaft 12, the grooves being formed as shown in Fig. 5, to give the required independent movements to the forks 10, 11.
Patent GB-1003475-A (GB)
Title: í¸ -pregnadien-17ª‡-ol-20-one derivatives and process for their production
IPC: C07J5/00
Filed: 1962-06-19
Abstract: The invention comprises D 3,5-pregnadien-17a -ol-20-one and esters thereof with hydrocarbon carboxylic acids of less than 12 carbon atoms optionally substituted by hydroxy, alkoxy of up to 5 carbon atoms, acyloxy of up to 12 carbon atoms, nitro or amino groups or halogen atoms; and the preparation thereof by selectively hydrolysing under mild acid conditions the 3-ketal group of the 3,20-bisethylene ketal of 17a -hydroxyprogesterone, reducing the 3-keto-group with a double metal hydride and treating the 3-hydroxy-D 4-compound thus obtained with 50% aqueous acetic acid at a temperature between 75 DEG and 100 DEG  C. for between 1 and 4 hours.  The esters are formed by acylation. Examples are given.
Patent GB-517843-A (GB)
Title: Improvements in or relating to conveyor mechanisms
IPC: F27D3/00
Filed: 1938-08-10
Abstract: 517,843. Step-by-step conveyers. GIBBONS BROS., Ltd., BALDWINS, Ltd., and MARCHANT, W. R. Aug. 10, 1938. No. 23544. [Class 78 (i)] Conveyer mechanism, adapted to advance articles step-by-step through the medium of members reciprocated mechanically and having a forward working and idle return stroke, is provided with means for actuating the reciprocating members so as to lift the articles clear of their supporting means immediately prior to a forward movement and to return the articles to their supports at the end of the forward movement; the reciprocating members supporting the articles during the forward movement and being tilted from the plane of reciprocation during the return movement so as to miss the articles. Thus, rotation of the tubes 8 causes the lugs 9 to raise the plates 10 and carry them along as the tubes move axially. At the end of the forward movement the lugs are rotated into the dotted line position while the tubes move backward. In a modification, adjacent lugs 9 on the same tube are connected by a cross-bar. Specification 438,743 is referred to.
Patent GB-1364335-A (GB)
Title: Circuits for measuring positive and negative voltages
IPC: G01R17/00
Filed: 1972-05-19
Abstract: 1364335 Measuring voltage INTERNATIONAL BUSINESS MACHINES CORP 19 May 1972 [11 June 1971] 23563/72 Heading G1U A voltage measuring circuit incorporating a single reference cell of either positive or negative polarity, is characterized in that any deviation of any one of a plurality of both positive and negative potentials (for example supply potentials for an electronic circuit) from its nominal value can be indicated. In a first embodiment, Fig.1, using positive reference potential, any one of four positive potentials labelled + or of three negative potentials labelled - can be compared with its nominal value which is preset by resistors R4 and R6. With a switch S in the position shown in full lines, a negative potential is connected to the measuring circuit, and by choosing the various resistors appropriately it can be arranged that when the potential being measured has its nominal value a meter 2, which may be calibrated as in Fig.3, carries sufficient current so that its needle occupies a central position labelled zero. Deviations of the potential under test are then indicated as departures from the nominal current. In a second embodiment Fig.2 (not shown) a negative polarity reference potential is used, and in a further modification Fig.4 (not shown) two switches S are employed allowing more potentials to be monitored, and a Zener diode stabilized reference potential is used.
Patent GB-1078443-A (GB)
Title: Yarn brake mechanism of two-for-one spindles
IPC: D01H13/10
Filed: 1966-05-26
Abstract: In a two-for-one twisting spindle in which the yarn is delivered from a stationary package upwardly through a yarn brake fitted axially to a hood surrounding the package, the yarn then moving downwardly in the opposite direction round the hood in the form of a balloon, radially entering the spindle rotor, and being delivered axially in the latter in a downward direction, the yarn brake exerts a force which increases with the yarn tension in the balloon as soon as the tension exceeds a given and adjustable value, thus ensuring that the yarn is taken off the package at an even rate which corresponds substantially to the take-up speed, and that the amplitude of the balloon is restricted, to such an extent that in, certain cases, the balloon-limiter may be dispensed with.  The spindle proper (6, Fig. 1, not shown) is connected to a driving-wharve (7) and is mounted in bearings carried by a housing fixed to the spindle-rail (1) connected to the spindle is a conical rotor (9) upstanding axially from which is a support (11) for a cage (15) in which the package is arranged to be kept stationary magnetically.  Carried by the cage is a hood (19) which terminates in a cylindrical part carrying the brake.  The latter comprises a housing enclosing a cylinder (23, Fig. 2, not shown) with semi spherical ends resting on a lower seating (22) and supporting at its upper end, a ring (21) on a flange (25) carried by a tube (27) and slidable in the housing.  The tube fits telescopingly into a yarn outlet tube (30) with a ring (31) and having a flange (29) also slidable in the housing.  Between the two flanges is a spring (28), the tension of which can be adjusted by a cap (32) which bears on the upper flange.  The yarn passes between the ends of the cylinder and its two seatings, and on leaving the outlet tube is deflected around the ring (31); when the tension beyond the ring rises, e.g. by an increase in the spindlespeed, above the value to which the brake has been adjusted, the upper tube is lowered and the tension of the spring is increased, so that the extent of the engagement between the cylinder and its seatings is also increased, thus braking the yarn.  In operation, the yarn is drawn off the package, passes upwardly to the brake and downwardly, between the limiter and the hood, to an inwardly and downwardly extending tube (10) in the conical rotor, which tube leads into the spindle proper whence the yarn passes downwardly for collection.
Patent GB-256809-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/20
Filed: 1925-09-23
Abstract: 256,809. Bloxam, A. G., (Chemische Fabrik Griesheim-Elektron). Sept. 23, 1925. Azo dyes; lakes.-Azo dyes are produced, in substance or on the fibre, bv coupling with 2 : 3-oxynaphthoic arylides the diazo compounds from unsulphonated amino substituted pseudoazimines of the general formula in which R and R<1> represent the same or different aryl nuclei which, in addition to one or two amino groups, may contain further substituents. According to examples (1) diazotized 2-(21-amino- 4<1>-chlorphenyl)-pseudo-azimino-alpha-#-naphthalene is coupled in substance with 2 : 3-oxynaphthoyl-2- anisidine; the product yields scarlet lakes : (2) cotton is dyed red, bluish-red, or garnet shades by impregnating with 2 : 3-oxynaphthoyl-aniline or #-naphthylamine and developing with diazotized 2-(3<1>-amino-4<1>-methylphenyl)- or 2-(4<1>- aminophenyl)- or 2-(2<1>-amino-4<1>-chlorphenyl)- pseudo-azimino-a-#-naphthalene- A table is also given showing the shades obtainable from the following :-as diazo components 2-(2<1>-, 3<1>-, or 4'- 2-(2<1> or 3<1>-amino-4<1>-methylphenyl), 2-(3<1>-amino- 4<1>-methoxyphenyl), or 2-(2<1>-amino-4<1>-chlorphenyl), pseudo - azimino-alpha-#-naphthalene, aminophenyl) pseudo - azimino-a-#-naphthalene, 2-(4<1>-aminonaphthyl) - pseudo - aziminobenzene, 5-amino- 2-(4<1>- aminophenyl) - pseudo - aziminobenzene ; as coupling components the 2 :3-oxynaphthoyl-derivatives of aniline, n- or #-naphthylamine, m- or p-toluidine, o- or p-anisidine, pphenetidine, in-nitraniline, o-, m-, or p-chloraniline, 5-chlor-2-toluidine, 4- or 5-chlor-2- anisidine, and dianisidine. Specifications 6379/12 and 17279/13, [Class 15 (ii), Dyeing, Processes d.c. for], are referred to. Amino-pseudo-aziminoaryls may be obtained by reducing the corresponding nitro compounds.
Patent GB-1285016-A (GB)
Title: 3,4-dihydroisoquinoline derivatives
Inventor: JEANMART CLAUDE
IPC: C07D217/22
Filed: 1971-04-19
Abstract: 1285016 Derivatives of 1-amino-3,4-dihydroisoquinoline RHONE-POULENC SA 19 April 1971 [12 March 1970] 23784/71 Heading C2C The invention comprises compounds of formula and their acid addition and quaternary ammonium salts, wherein each R is H, halogen, MeO or R-R is O-CH 2 -O; one of R 1 , R 2  is Ph and the other is H or Ph; A is C 1-5  alkylene, and (a) R 3 , R 4  are each C 1-5  alkyl, or (b) R 3  is alkylene (up to C 5 ) forming an N-heterocyclic ring with at most 7C atoms by attachment to a C atom of A, and R 4  is C 1-5  alkyl, or (c) NR 3 R 4  forms a 5- or 6-membered monocyclic ring, optionally containing as second heteroatom N, O or S, and optionally substituted by C 1-5  alkyl. These compounds are prepared by reacting a corresponding 1 - C 1-3  - alkylthio - 3,4 - dihydroisoquinoline (obtained from the 1 -mercapto compound with MeI) with R 3 R 4 N-A-NH 2 . Also prepared is Ph 2 CHCH 2 NCS. Therapeutic compositions for oral, parenteral, rectal or topical administration comprise compounds of the above formula, which are antiarrhythmic agents.
Patent GB-849229-A (GB)
Title: Improvements in or relating to variable speed transmissions
IPC: F16H61/62
Filed: 1957-07-26
Abstract: 849,229. Variable-speed gear. FORD MOTOR CO. Ltd. July 26,1957 [Aug. 15, 1956],No. 23791/57. Class 80 (2). [Also in GroupXXIX] A three-element hydrodynamic torque converter 10, the turbine T of which drives an output shaft 118 through a planetary gear 12 for forward reduced drive, whilst its reactor R drives the planet gear backwards for reverse, has a direct drive friction clutch the driven disc 88 of which is directly connected to the output 118 and is clamped against an input housing 80, for clutch engagement, by static pressure in the working circuit of the converter acting on the converter impeller P, which is formed as a pressure-plate and is slidably connected to the input housing by pins 76. The pressure in the working circuit is opposed by a control pressure in the housing, clutch engagement being effected by decreasing the pressure supplied to the housing by a control circuit fed by speed-responsive input and output driven pumps 34, 150. For forward reduced ratio (1.59 in the gear) a brake 154 holds a stepped-planet carrier 114, and through a oneway clutch 110 the converter reactor R. The turbine T of the torque converter directly drives a sun 68, drive issuing at a sun 120 integral with the output shaft 118. For reverse a brake 160 holds the sun 68 and connected turbine T, the reactor R rotates backwards, and through the one-way clutch 110 drives reversely the planet carrier 114 which, reacting on the braked sun 68, drives the output sun 120 in reverse (2.50 in the gear).
Patent GB-392792-A (GB)
Title: Improvements in or relating to partitioned holders for plate-like objects, more especially gramophone records
IPC: B65D85/57
Filed: 1932-08-25
Abstract: 392,792. Racks. BOFINGER, A., 1, Charlottenplatz, Stuttgart, Germany. Aug. 25, 1932, No. 23795. [Class 52 (i).] Partitions for a storage rack are formed from resilient sheet material bent to U-shape with the bends facing outwardly and with adjacent walls of successive partitions in contact at their outer ends and diverging inwardly. The partitions may be formed from a single sheet bent in a sinuous manner, as in Fig. 4, or from a series of separate sheets interconnected by tongue-and-slot fastenings k, m formed on the inner edges of the sheets.
Patent GB-1097523-A (GB)
Title: Fluid flow control valves
IPC: F16K3/02
Filed: 1965-06-04
Abstract: 1,097,523. Valves. ACF INDUSTRIES Inc. June 4, 1965 [June 30, 1964]. No. 23883/65. Heading F2V. A valve comprises a gate 34 to control flow through a passageway 26 having seat rings 68. Each ring 68 comprises a sealing ring (74), (Fig 6, not shown), and an external groove (86) to locate a gate guide member (76). Each guide comprises a plate (78) having side flanges (82) to restrict lateral movement of the gate and oppositely directed flanges (84) to locate in the groove (86) in such a manner to allow removal of the guide from the ring 68, Fig. 5, (not shown).
Patent GB-337467-A (GB)
Title: Improvements relating to automatic road traffic signalling devices
IPC: G08G1/096
Filed: 1929-08-03
Abstract: 337,467. Napier, J. Aug. 3, 1929. Road signals.-An automatic signalling device for controlling road traffic comprises a pointer 7 traversing four arcuate strips 5, 9, 6, 9 which are of the same colours as the indicators 2, 8, 3, 8 and are illuminated in turn simultaneously therewith, the pointer being driven by the mechanism which controls the lights.
Patent GB-374702-A (GB)
Title: Improvements in cans, boxes, canisters and the like
IPC: B65D43/26
Filed: 1931-08-26
Abstract: 374,702. Bottle &c. stoppers. CROWLEY, J. F., and VACSEAL CONTAINERS, Ltd., Westminster House, Great George Street, London. Aug. 26, 1931, No. 23949. [Class 125 (iii).] A jar, can, &c., comprising a container-part and a cap-part both being of metal, or one part being formed of rigid material, e.g. glass, and constructed with a horizontal flange 3 on one part adapted to receive an elastic packing ring 4, a flange 7 bearing vertical depressions 8 leading into a partial or complete groove 6, the other part having spaced pips 9, upraised from the material of that part, is characterized in that the pips 9 may pass into the spaces 8 or alternatively may hold, in an angularly displaced position, upon the full diameter of the flange 7. A pulling tab 5 for breaking the vacuum is preferably provided. Fig. 5 indicates that the depressions 14, 15, analogous to the depressions 8 of Fig. 1, may be staggered on each side so that when the lid is turned through 180‹, before putting on, it will then hold on a full diameter.